FileIO.WriteBufferAsync(IStorageFile, IBuffer) Method
Definition
Important
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Writes data from a buffer to the specified file.
public:
static IAsyncAction ^ WriteBufferAsync(IStorageFile ^ file, IBuffer ^ buffer);/// [Windows.Foundation.Metadata.RemoteAsync]
static IAsyncAction WriteBufferAsync(IStorageFile const& file, IBuffer const& buffer);[Windows.Foundation.Metadata.RemoteAsync]
public static IAsyncAction WriteBufferAsync(IStorageFile file, IBuffer buffer);function writeBufferAsync(file, buffer)Public Shared Function WriteBufferAsync (file As IStorageFile, buffer As IBuffer) As IAsyncActionParameters
- file
- IStorageFile
The file that the buffer of data is written to.
- buffer
- IBuffer
The buffer that contains the data to write.
Returns
No object or value is returned when this method completes.
- Attributes
Examples
The File Access sample shows you how to use WriteBufferAsync to write data from a buffer to a file.
try
{
if (file != null)
{
IBuffer buffer = CryptographicBuffer.GenerateRandom(10);
await FileIO.WriteBufferAsync(file, buffer);
// Perform additional tasks after file is written
}
}
// Handle errors with catch blocks
catch (FileNotFoundException)
{
// For example, handle file not found
}
In the example, file is a local variable that contains a StorageFile that represents the file to write.
Although the WriteBufferAsync methods don't have a return value, you can still perform additional tasks after the text is written to the file, as the example shows.